12.21.2017 - By Playboy
We learned a lot about sex in 2017, and we have science to thank. Among other things, researchers came one step closer to pinpointing the elusive “gay gene,” they found that being sexually active may change the way a woman’s immune system operates and they debunked the idea that pornography necessarily promotes sexism and misogyny. Let’s take a closer look at these and some of the other incredible things we learned about sex this year.